esp8266-d1-mini-8x-relay-shield-c3
Differences
This shows you the differences between two versions of the page.
| Next revision | Previous revision | ||
| esp8266-d1-mini-8x-relay-shield-c3 [2023/12/10 09:07] – created mralvin | esp8266-d1-mini-8x-relay-shield-c3 [2023/12/10 12:01] (current) – [What is changed (or added):] mralvin | ||
|---|---|---|---|
| Line 1: | Line 1: | ||
| + | ====== 8x P-channel MOSFET - Wemos D1/S2 mini controlled - Version C3 ====== | ||
| + | {{: | ||
| + | |||
| + | Inspiration by [[https:// | ||
| + | |||
| + | Q: What is this board good for? | ||
| + | A: Automotive use - as this board turns power on/off on the plus wire | ||
| + | |||
| + | ====What is still the same as the Original board:==== | ||
| + | * size of board is exactly the same (80mm x 104mm) | ||
| + | * position of the corner screw holes are exactly the same | ||
| + | * GND is still a part of the corner mounts | ||
| + | * position of (screw holes for) the 8x P-channel MOSFETs are exactly the same | ||
| + | * it is still possible to use the 7805 chip to convert from 12V to 5V (though a DC-DC convert option is added) | ||
| + | * it is still possible to manually activate a MOSFET using a DIP switch | ||
| + | * it is still possible to use the "Wemos D1 mini" as the MCU controller (though a "Wemos S2 mini" is now optional) | ||
| + | * it is still possible to use the very nice 45-degree-angled spring-loaded high-amp Molex connectors | ||
| + | |||
| + | |||
| + | ====What is changed (or added):==== | ||
| + | * for low amp boards, 3mm holes to hold the MOSFETs in place has been added | ||
| + | * at the DIP switch, holes have been added (for ease of adding external (miniature relay) control of a channel) | ||
| + | * using 0805 size components (are easier to hand solder) | ||
| + | * because gerber import (to a different design software) was not complete/ | ||
| + | * added IDC 10-pin option (for easy connect/ | ||
| + | * added extra pin rows so the dual rows of the "Wemos S2 mini" (ESP32 27-pin) controller connects to the board | ||
| + | * 8 of the extra S2 pins are available as an 8-pin IO connector | ||
| + | * added an option to use a switch-mode '12V -> 5V DC-DC converter' | ||
| + | * added a 5V pin-connector at the bottom edge of the board | ||
| + | * added a GND screw-terminal/ | ||
| + | * added solder stripes to the bottom layer - so additional copper strips can be soldered to the board (2x 64amp strips can be added) | ||
| + | * additional power-in connectors/ | ||
| + | * option to use screw-held ring-eye-lets as power-out connectors | ||
| + | * added a DHT22 connection header (S2 mini option on pin D21) | ||
| + | * option for external 12V power-in going to 12V -> 5V converter - so a simple on/off signal can remove power from the MCU (and thus can turn the entire board OFF) - in low-battery-voltage situations | ||
| + | * option to dedicate one of the MOSFETs to control the 12V power going to the C3 boards - so a simple on/off signal can remove power from all the MCUs on all the C3 boards (and thus can turn OFF all the C3 boards) - in low-battery-voltage situations | ||
| + | * added a 100nF capacitor to the A0 analog input (might help stabilize the analog reading a little bit) | ||
| + | |||
| + | ====Schematics: | ||
| + | {{: | ||
| + | |||
| + | Schematics PDF file: {{: | ||
| + | |||
| + | ====PCB Files:==== | ||
| + | |||
| + | Use the PCB design-file-viewer if you would like to see/test the entire copper path as it switches sides and/or connects to several solder points. | ||
| + | * Link to Free download of the [[https:// | ||
| + | * {{: | ||
| + | | ||